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Finding the Fourth Proportional to 164,425.20, 246,637.80 and 53,617.20

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Solution

The fourth proportional to 164,425.20, 246,637.80 and 53,617.20 is: 80,425.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,425.20 : 246,637.80 = 53,617.20 : x
  2. Step 2: Convert to fraction form
    164,425.20/246,637.80 = 53,617.20/x
  3. Step 3: Cross multiply
    164,425.20x = 246,637.80 × 53,617.20
  4. Step 4: Simplify right side
    164,425.20x = 13,224,028,250.16
  5. Step 5: Solve for x
    x = 13,224,028,250.16/164,425.20
  6. Step 6: Final answer
    x = 80,425.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.